Electric process heater plants

OhmEx plans, manufactures and supplies electric process heaters and electrical control panels

  • for use in safe areas
  • for explosion-protected zones to ATEX

Typical industrial applications

  • Combustible / fuel gas / fuel oil
  • Industrial gases (e.g. air / nitrogen)
  • Heating, heat transfer and lubrication oils
  • Fresh water and extinguishing water
  • Glycol-water mixtures
  • Crude oil / hydrocarbons / fluids
  • Superheated steam
Manufacturing / Key data
Kenndaten

  • Process flange to DIN / ANSI
  • Pressure level up to PN160 / 2500 lbs
  • Heating output up to 5000 kW
  • Connection voltage max. 690 V
  • Ambient temperature -50/ + 60 °C
  • Heating up to +600 °C

Pressure vessel/heating element materials

  • Incoloy 800/825 (1.4876 / 2.4858)
  • Stainless steel 1.4404 (AISI 316L)
  • Inconel 600 / 625
  • Stainless steel 1.4541 (AISI 321)
  • Stainless steel 1.4571 (316 Ti)

Production / design codes

  • PED 2014/68/EU
  • ASME VIII Div. 1/2
  • AD2000 notices
  • Ship classifications:
    • DNV Det Norske Veritas
    • LR Lloyds Register; BV Bureau Veritas,
    • GL Germanischer Lloyd
  • CU TR
  • SELO

Electric Process heater 2 x 100 kW
Hot water for heating process

Electric Process heater 2 x 100 kW
for Diethylenglykol


Electric Process heater 1200 kW (Power-to-Heat)
Hot water for district heating

Electric Process heater 4 x 2500 kW (Power-to-Heat)
Hot water for district heating


Electric process heater plant 250 kW
Steam superheater for Seal Gas


Electric Process heater 300 kW
Superheater for Hydrogen Gas


Electric Process heater 2 x 400 kW
For fuel oil


Electric Process heater plant 60 kW
Hot Water (nuclear application)

OhmEx - Your partner for industrial heaters

Contact now

OhmEx Industrielle Elektrowärme GmbH
Industriering 7
DE – 63868 Großwallstadt
Phone: +49 6022 / 26 12 00
Fax: +49 60 22 / 26 12 02
E-Mail: info@ohmex.de

How to find us

Quality & Certificates

The OhmEx company regularly gets itself certified externally - so we keep our quality consistently high!
Currently we are certified according to
IQNet ISO 9001: 2015
and ISO 9001: 2015.
Download the certificate ISO 9001:2015 here:
ISO 9001-2015 Certificates

Your direct contact

You are also welcome to contact our sales department directly:

Dipl. Ing. Wolfgang Vogler
Tel.: +49 6022 / 26 12 01